| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.hcatalog.data.transfer.state; |
| |
| import java.text.NumberFormat; |
| import java.util.Random; |
| |
| public class DefaultStateProvider implements StateProvider { |
| |
| /** |
| * Default implementation. Here, ids are generated randomly. |
| */ |
| @Override |
| public int getId() { |
| |
| NumberFormat numberFormat = NumberFormat.getInstance(); |
| numberFormat.setMinimumIntegerDigits(5); |
| numberFormat.setGroupingUsed(false); |
| return Integer |
| .parseInt(numberFormat.format(Math.abs(new Random().nextInt()))); |
| } |
| |
| private static StateProvider sp; |
| |
| public static synchronized StateProvider get() { |
| if (null == sp) { |
| sp = new DefaultStateProvider(); |
| } |
| return sp; |
| } |
| } |